Nut-lock.



No. 825,802. PATENTED JULY 10, 1906.

" E. G. BILLINGS.

NUT LOCK.

APPLICATION FILED we. 21, 1905.

c jwuawlioc E. C 317M795 UNITED STATES PATENT OFFICE.

NUT-LOCK.

Specification of Letters Patent.

Patented July 10, 1906.

Application filed August 21.1905. Serial No- 275,074.

To (0Z7 'LUhOWb it may concern:

Be it known that I, ERASTUS CowLEs BIL- LINGS, a citizen of the UnitedStates, residing at Greenfield, in the county of Franklin and State ofMassachusetts, have invented certain new and useful Improvements in Nut-Locks; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in nut-locks of that class in whichthe nut is locked to the bolt; and it consists in the novelconstruction, combination, and arrangement of devices hereinafterdescribed and claimed.

The object of the invention is to provide a simple, durable, andcomparatively inexpensive device of this character by means of whichnuts may be quickly and easily looked upon their bolts.

The above and other objects, which will appear as the nature of myinvention is better understood, are accomplished by means of theconstruction illustrated in the accompanying drawings, in which- Figure1 is a perspective view of a bolt and nut with my improved locking meansapplied thereto. Fig. 2 is a longitudinal sectional view through thesame. Fig. 3 is a transverse sectional view taken on the line 3 3 inFig. 2. Fig. 4 is a perspective view of the nut, and Fig. 5 is a similarview of the lock ing-pin.

Referring to the drawings by numerals, 1 denotes a bolt, and 2 a nut,which is locked thereon by my improved locking means. The bolt 1, whichmay be of any desired construction, has formed in its screw-threaded end3 a longitudinally-extending groove or channel 4, and the nut 2- has itsouter face formed with transversely-extending grooves or notches 5.These grooves or notches are preferably arranged centrally, so that theyintersect each other and the threaded opening of the nut. The nut islooked upon the bolt by means of an auxiliary nut or plate 6 and acotter-pin or locking-pin 7. The lock ing nut or plate 6 may be of anydesired form; but 1 preferably employ a comparatively thin nut, whichmay be screwed upon the threaded end of the bolt against the outernotched face of the nut 2Q The lockingpin 7 is preferably in the form ofa cotterpin, as shown; but it may be of any other desired form andconstruction, so that it has a portion 8 adapted to seat in one of thenotches 5 and one or more angularly-extending portions 9, adapted toseat in the longitudinal groove 4 of the bolt 1. The pin is preferablyof T form, as shown in Fig. 5 of the drawings, and is adapted to lockthe nut against rotary movement by the engagement of itsoppositely-projecting ends or portions 9 with the groove 4 in the boltand by the engagement of its end 8 with the nut 6, said end being bentinto engagement with said locking-nut, as shown in Figs. 1 and 2 of thedrawings, when it is desired to lock said parts.

The construction, use, and advantages of the invention will be readilyunderstood from the foregoing description, taken in connection with theaccompanying drawings. It will be seen that in looking the nut thelatteris screwed upon the bolt to the desired extent and then turned so thatone of the notches or grooves 5 alines with the groove 4 in the bolt.The looking or cotter pin is then applied so that its portions 9 areseated in the groove 4 and its portion 8 in the alining groove or notch5. The locking-nut 6 is then screwed down against the outer face of thenut 2, and the end 8 of the locking-pin is bent over the locking-nut 6,as shown. The device is simple, durable, and reliable, and by means ofit a nut may be quickly locked to or unlocked from the bolt.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The herein-described nut-lock consisting of a bolt having alongitudinally-extending groove 9 in the threaded portion thereof, a nuthaving centrally-disposed intersecting transverse grooves 5 in its outerface, a locking-nut screwed upon said bolt into engagement with theouter face of the first-mentioned nut, and a split key 7 formed of a Intestimony whereof I have hereunto set half-round Wire having its bentopposite1ymy hand in presenceof two subscribing Witprojeeting endsseated in the groove 9 in the nesses.

bolt and its doubled portion seated in one of ERASTUS COWLES BILLINGS. 5the grooves 5 in said nut and bent over into Witnesses:

engagement with said locking-nut, essen- CHARLES N. STODDARD,

tially as described. GEORGE K. POND.

